RAC转换传统的通信

1.UI事件

[self.logInButton rac_signalForControlEvents:UIControlEventTouchUpInside]

2.Delegate回调

[self rac_signalForSelector:@selector(flickrAPIRequest:didCompleteWithResponse:) fromProtocol:@protocol(OFFlickrAPIRequestDelegate)];

3.Notificaiton

[NSNotificationCenter.defaultCenter rac_addObserverForName:UserDidLogOutNotification object:nil]

4.KVO观察

[RACObserve(self, username)]

5.Target-Action

[self rac_signalForSelector:@selector(didChangeValueForKey:)]

RAC转换传统的通信

原文：http://www.cnblogs.com/guoxiaoqian/p/4683350.html